The Development of the Olympus “C” Gas Generator

1979 ◽  
Author(s):  
C. H. Green ◽  
C. J. Bean
Keyword(s):  
Gas Turbines ◽  
Advanced Technology ◽  
Combustion System ◽  
Gas Generator ◽  
Service Operation ◽  
Successful Design ◽  
Gas Generators ◽  
Identification Analysis ◽  
Cycle Temperature ◽  
Significant Milestone

Firmly based on the well established Olympus “A” and “B” gas generators, the successful design and development of a 30 percent more powerful version, the Olympus “O,” specifically for industrial and marine operation, represents a significant milestone in the use of compact gas turbines in these fields. Producing 33 EGMW, the re-design of the gas generator turbines and combustion system to introduce more advanced technology permitted the raising of the maximum cycle temperature by 140 K. The engineering program from project concept through basic development and launch to successful commercial service operation is described with particular emphasis on problem identification, analysis, and solution.

Developments in British Gas Generators for Gas Turbines

1969 ◽  
Author(s):  
W. U. Snell ◽  
Trevor Albone
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Peak Load ◽  
Operating Experience ◽  
Gas Generator ◽  
The United Kingdom ◽  
Gas Generators ◽  
Electrical Generation ◽  
Generator Design ◽  
Electrical Utilities

Conditions conducive to the generation of peak load electricity in the factory of the author’s company and the application of these principles on a national scale. Peak load gas turbine generating stations on the main electrical utilities in the United Kingdom, and early operating experience with the gas generators forming the motive power. Natural gas and its impact on the gas turbine for uses other than electrical generation, with particular reference to Canadian gasline pumping installations and future development in gas generator design.

Design and Development of a Process Plant Gas Generator Installation

1984 ◽  
Author(s):  
G. A. Reynolds
Keyword(s):  
Gas Turbines ◽  
Gas Flow ◽  
El Paso ◽  
Gas Generator ◽  
Design And Development ◽  
Hot Gas ◽  
Process Plant ◽  
Gas Generators

In 1972 El Paso Products investigated the possibility of replacing their existing industrial gas generators with an alternative. These gas turbines provided a constant hot gas flow to the catalysts of their butadiene plant in Odessa Texas. This project demanded the highest reliability and offered some unique engineering challenges.

scholarly journals A Comparative Study on Fault Detection Methods for Gas Turbine Combustion Systems

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 389
Author(s):  
Jinfu Liu ◽  
Zhenhua Long ◽  
Mingliang Bai ◽  
Linhai Zhu ◽  
Daren Yu
Keyword(s):  
Fault Detection ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Operating Conditions ◽  
Detection Methods ◽  
Distribution Model ◽  
Outlet Temperature ◽  
Combustion System ◽  
Comparison Results ◽  
Gas Turbine Combustion

As one of the core components of gas turbines, the combustion system operates in a high-temperature and high-pressure adverse environment, which makes it extremely prone to faults and catastrophic accidents. Therefore, it is necessary to monitor the combustion system to detect in a timely way whether its performance has deteriorated, to improve the safety and economy of gas turbine operation. However, the combustor outlet temperature is so high that conventional sensors cannot work in such a harsh environment for a long time. In practical application, temperature thermocouples distributed at the turbine outlet are used to monitor the exhaust gas temperature (EGT) to indirectly monitor the performance of the combustion system, but, the EGT is not only affected by faults but also influenced by many interference factors, such as ambient conditions, operating conditions, rotation and mixing of uneven hot gas, performance degradation of compressor, etc., which will reduce the sensitivity and reliability of fault detection. For this reason, many scholars have devoted themselves to the research of combustion system fault detection and proposed many excellent methods. However, few studies have compared these methods. This paper will introduce the main methods of combustion system fault detection and select current mainstream methods for analysis. And a circumferential temperature distribution model of gas turbine is established to simulate the EGT profile when a fault is coupled with interference factors, then use the simulation data to compare the detection results of selected methods. Besides, the comparison results are verified by the actual operation data of a gas turbine. Finally, through comparative research and mechanism analysis, the study points out a more suitable method for gas turbine combustion system fault detection and proposes possible development directions.

Design, Development and Application of Vehicle Gas Turbine Engines

1966 ◽  
Vol 181 (1) ◽  
pp. 149-172
Author(s):  
P. A. Phillips ◽  
Peter Spear
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Low Cost ◽  
Engine Performance ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Design Development ◽  
Turbine Engine ◽  
Wide Range ◽  
Cycle Temperature

After briefly summarizing worldwide automotive gas turbine activity, the paper analyses the power plant requirements of a wide range of vehicle applications in order to formulate the design criteria for acceptable vehicle gas turbines. Ample data are available on the thermodynamic merits of various gas turbine cycles; however, the low cost of its piston engine competitor tends to eliminate all but the simplest cycles from vehicle gas turbine considerations. In order to improve the part load fuel economy, some complexity is inevitable, but this is limited to the addition of a glass ceramic regenerator in the 150 b.h.p. engine which is described in some detail. The alternative further complications necessary to achieve satisfactory vehicle response at various power/weight ratios are examined. Further improvement in engine performance will come by increasing the maximum cycle temperature. This can be achieved at lower cost by the extension of the use of ceramics. The paper is intended to stimulate the design application of the gas turbine engine.

Advanced Technology Programs for Small Turboshaft Engines: Past, Present, Future

1991 ◽  
Vol 113 (1) ◽  
pp. 33-39 ◽  
Author(s):  
E. T. Johnson ◽  
H. Lindsay
Keyword(s):  
United States Army ◽  
High Performance ◽  
The United States ◽  
Modern Technology ◽  
Advanced Technology ◽  
Gas Generator ◽  
Turbine Engine ◽  
Technology Programs ◽  
Aircraft Propulsion System ◽  
Year 2000

This paper addresses approximately 15 years of advanced technology programs sponsored by the United States Army Aviation Applied Technology Directorate and its predecessor organizations and conducted by GE Aircraft Engines (GEAE). Included in these programs is the accomplishment of (1) the 1500 shp demonstrator (GE12), which led to the 1700, and (2) the 5000 shp Modern Technology Demonstrator Engine (MTDE/GE27). Also included are several advanced technology component programs that have been completed or are ongoing through the early 1990s. The goals for the next generation of tri-service small advanced gas generator demonstration programs are shown. A prediction is thus made of the advancements required to fulfill the aircraft propulsion system established by the DoD/NASA Integrated High-Performance Turbine Engine Technology (IHPTET) initiative through the year 2000.

IMPROVING THE EFFICIENCY OF HOT GAS GENERATORS FOR HEATING AUTOMOTIVE EQUIPMENT

2021 ◽  
Vol 2 (143) ◽  
pp. 46-53
Author(s):  
Andrey V. Negovora ◽  
◽  
Makhmut M. Razyapov ◽  
Arseniy A. Kozeyev
Keyword(s):  
Heat Pipe ◽  
Thermal Energy ◽  
Thermal Power ◽  
Research Purpose ◽  
Gas Generator ◽  
Thermoelectric Converter ◽  
Remote Monitoring System ◽  
Hot Gas ◽  
Safety Research ◽  
Gas Generators

Hot gas generators are used as a source of thermal energy for pre-start preparation of motor vehicles in cold climatic conditions. Their wide application is due to the high thermal power and safety. (Research purpose) The research purpose is in determining the possibilities of using thermoelectric modules to reduce the energy consumption of the battery by hot gas generators. (Materials and methods) Authors used research methods based on the application of standard techniques, while the object of research was the power supply system of a thermal energy source. (Results and discussion) Authors conducted research on ways and methods to reduce the electric consumption of a hot gas generator by recuperating thermal energy into electrical energy using thermoelectric generator modules. The thermoelectric converters installed on the heat pipe of the hot gas generator, due to the high temperature difference, will allow to obtain a high value of the electromotive force. Modeling of the nozzle in the software package of the Ansys three-dimensional modeling system showed that part of the heat energy goes through the surface of the heat pipe. The article proposes the use of a nozzle with a thermoelectric converter installed on the outer surface of the cylinder instead of a heat pipe. The article presents the mathematical model of an improved hot gas generator nozzle. (Conclusions) The use of a thermoelectric converter for the utilization of thermal energy and the replacement of energy losses of the battery, which feeds the hot gas generator, will reduce the internal power losses of the battery and increase the technical readiness of automotive equipment. The introduction of a comprehensive heat treatment system, which is intelligently and functionally linked to a remote monitoring system, will significantly increase the service life of the units most exposed to temperature influences.

Expectations and Recent Experience for Gas Turbine Reliability, Availability, and Maintainability (RAM)

2007 ◽  
Author(s):  
Robert F. Steele ◽  
Dale C. Paul ◽  
Torgeir Rui
Keyword(s):  
Power Systems ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Advanced Technology ◽  
Recent Experience ◽  
Reliability Growth ◽  
Market Place ◽  
New Product Introductions ◽  
Low Emission ◽  
The Cost

Since the early 1990’s there have been significant changes in the gas turbine, and power generation market place. The ‘F-Class’ Gas Turbines, with higher firing temperatures, single crystal materials, increased compressor pressure ratios and low emission combustion systems that were introduced in the early 1990’s have gained significant field experience. Many of the issues experienced by these new product introductions have been addressed. The actual reliability growth and current performance of these advanced technology machines will be examined. Additionally, the operating profiles anticipated for many of the units installed during this period has been impacted by both changes in the anticipated demand and increases in fuel costs, especially the cost of natural gas. This paper will review how these changes have impacted the Reliability, Availability, and Maintainability performance of gas turbines. Data from the ORAP® System, maintained by Strategic Power Systems, Inc, will be utilized to examine the actual RAM performance over the past 10 to 15 years in relation to goals and expectations. Specifically, this paper will examine the reliability growth of the F-Class turbines since the 1990’s and examine the reliability impact of duty cycle on RAM performance.

Advanced Control System Considerations for Small Shaft-Type Aircraft Gas Turbines

1970 ◽  
Author(s):  
D. A. Prue ◽  
T. L. Soule
Keyword(s):  
Control System ◽  
Gas Turbines ◽  
Evaluation Criteria ◽  
Open Loop ◽  
Engine Control ◽  
Gas Generator ◽  
Engine Control System ◽  
Power Turbine ◽  
Advanced Control ◽  
Temperature Load

The next generation of free-turbine engines in the 2 to 5-lb/sec airflow class will undergo vast improvements in performance and efficiency. The improvements will be achieved concurrent with overall reductions in size and weight. Effort is required at optimization and miniaturization of the engine control system to keep pace with these improvements. This paper describes a conceptual design of an advanced engine control system for this class of engine. It provides gas generator and power turbine control with torque, temperature, load sharing and overspeed limiting functions. The control system was concepted to accommodate, with minimum hardware changes, such variants as regenerative cycle and/or variable power turbine geometry. In addition, considerations for closed and open loop modes of control and fluidic, electronic and hydromechanical technologies were studied to best meet a defined specification and a weighted set of evaluation criteria.

An Introduction to the Ansaldo GT36 Constant Pressure Sequential Combustor

2017 ◽  
Author(s):  
Douglas A. Pennell ◽  
Mirko R. Bothien ◽  
Andrea Ciani ◽  
Victor Granet ◽  
Ghislain Singla ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Constant Pressure ◽  
Energy Market ◽  
Combustion System ◽  
Turbine Engine ◽  
Beneficial Effects ◽  
Fuel Flexibility ◽  
Temperature Ranges ◽  
System Robustness

This paper introduces and presents validation of the Constant Pressure Sequential Combustion system (denoted CPSC), a second generation concept developed for and applied to the new Ansaldo GT36 H-class gas turbine combustors. It has evolved from the well-established sequential burner technology applied to all current GT26 and GT24 gas turbines, and contains all architectural improvements implemented since original inception of this engine frame in 1994, with beneficial effects on the operation turndown, fuel flexibility, on the overall system robustness, and featuring the required aspects to stay competitive in the present day energy market. The applied air and fuel management therefore facilitate emission and dynamics control at both the extremely high and low firing temperature ranges required for existing and future Ansaldo gas turbine engine classes.

Condition Monitoring of Combustion System on Industrial Gas Turbines Based on Trend and Noise Analysis

2017 ◽  
Author(s):  
Yu Zhang ◽  
Miguel Martínez-García ◽  
Mike Garlick ◽  
Anthony Latimer ◽  
Samuel Cruz-Manzo
Keyword(s):  
Condition Monitoring ◽  
Gas Turbines ◽  
Noise Analysis ◽  
Warning System ◽  
The Other ◽  
Training Data ◽  
Combustion System ◽  
Industrial Gas Turbines ◽  
Industrial Level ◽  
Experimental Trials

In this paper, a scheme of an ‘early warning’ system is developed for the combustion system of Industrial Gas Turbines (IGTs), which attains low computational workload and simple programming requirements, being therefore employable at an industrial level. The methodology includes trend analysis, which examines when the measurement shows different trends from the other measurements in the sensor group, and noise analysis, which examines when the measurement is displaying higher levels of noise compared to those of the other sensors. In this research, difficulties encountered by other data-driven methods due to temperature varying with load conditions of the IGT’s have also been overcome by the proposed approach. Furthermore, it brings other advantages, for instance, no historic training data is needed, and there is no requirement to set thresholds for each sensor in the system. The efficacy and effectiveness of the proposed approach has been demonstrated through experimental trials of previous pre-chamber burnout cases. And the resulting outcomes of the scheme will be of interest to IGT companies, especially in condition monitoring of the combustion system. Future work and possible improvements are also discussed at the end of the paper.

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